Cannot connect to wireless network after fresh install of Windows 7

My desktop previously had Windows 7 32 bit installed on it, and since I had so many applications installed on it, I had put off installing the 64 bit version. However, last night I decided to bite the bullet and put the 64 bit version on it before I install StarCraft II. The install process runs just fine and puts my old Windows settings in 'C:\Windows.old' directory. The first thing I did was to copy all of the files and folders from 'C:\Windows.old\Users'. Then I tried to connect to my wireless network. No dice. I can view all of the networks within my area, but it tells me that I have put in the incorrect password for my network. Thinking that I may have accidentally capitalized or spelled my password wrong, I reset my router. I then used my laptop and a hardwire to configure the network settings and put in a new password and saved the settings. I then connected my laptop wirelessly with the new password. I went back over to my desktop and tried to connect with the new password. Nada. I haven't had time to install the drivers for my wireless adapter (can't find the disc), nor have I been able to activate my copy of Windows 7 as I have yet to go online with it. Here are the specs of my PC:

I'm sure there are other things that could cause this problem, but the first thing I'd check is to make sure that you're using the correct encryption. It's possible that your computer's trying to connect with, say, WEP encryption, which would cause you to get the incorrect password message.

Hey guys, thank you for posting and helping me through this. I'm happy to say that I've gotten it working. All that I did was install the drivers for my network adapter and I was able to connect without any issues. Thanks again!